Putting the pressure control panel into a safe condition

In the event of interruptions in operation for more than 48 hours or pending maintenance or servicing, the pressure control panel must be put into a safe condition.

The process gas source must be connected during flushing (see "Connecting the process gas source"). Also observe the "Preparations for commissioning" chapter.

1. Close process gas source and route off the acetylene located in the pressure control panel via the connected consumers.
2. When this pressure relief or routing-off process is completed, the two pressure gauges on the pressure regulator must display the value "zero". Visual inspection!
3. Close PLI.
4. Close pilot pressure source valve.
5. Vent the pilot pressure on the switching panel by pressing the switching lever up and down on both anti-tip roller valves.
6. Vent the pilot gas pressure regulator.
7. Detach the control pressure connection.